CONTENTS

1 Introduction
2 References
3 Abbreviations
4 Call set-up delay
4.1 definition of call set-up delay at a single section boundary
4.2 definition call set-up delay between two section boundaries
4.3 Values
5 Data packet transfer delay
5.1 data packet transfer delay definition
5.2 Values
6 Throughput parameters
6.1 throughput definition
6.2 steady-state throughput definition
6.3 throughput capacity definition
6.4 Values
7 Call clearing delay
7.1 Clear indication delay
7.2 clear confirmation delay
Annex A Factors to be specified in reporting throughput performance
A.1 Signalling rates
A.2 Interface windows
A.3 Packet length
A.4 Additional virtual connections
A.5 Time-of-day
A.6 Direction
A.7 Throughput class
A.8 D-bit usage
A.9 Delay
A.10 Reporting throughput capacity
Annex B Ancillary information on throughput measurement and the application of throughput capacity values
Annex C Representative end-to-end speed of service performance
C.1 Definition of the example end-to-end connections
C.2 End-to-end speed of service performance for the type 1 and type 2 configuration examples
C.3 Methods for calculating mean and 95% points of delays and throughputs of packet-switched services with two or more concatenated portions
C.4 Notes on key assumptions, results, and implications
Reference
Supplement No. 1 to Recommendation X.135 Some test results from specific national and international portions
1 Telstra network testing
1.1 International B portion call set-up delay values
1.2 International B portion throughput values (9600 bit/s)
1.3 International B portion throughput values (64 000 bit/s)
1.4 International B portion data packet transfer delay values
2 DATEX-P network testing
2.1 National A portion delay and throughput values
2.2 National B portion delay and throughput values